Đề thi Học kì 2 Toán 7 năm 2025-2026 trường THCS Chu Văn An (TP HCM)

$ac = bd$

$ab = cd$

$ad = bc$

$ad = cd$

$\dfrac{a}{4} = \dfrac{b}{5} = \dfrac{a+b+c}{4+5-7}$

$\dfrac{a}{4} = \dfrac{b}{5} = \dfrac{a+b-c}{4+5-7}$

$\dfrac{a}{4} = \dfrac{b}{5} = \dfrac{a-b-c}{7-4-5}$

$\dfrac{a}{4} = \dfrac{b}{5} = \dfrac{a-b+c}{4+5-7}$

3 + 6y

7x² + 2x + 1

$\dfrac{2}{x + 1}$

$\dfrac{1}{3}x - 5$

4

2

3

5

1

2

-1

-2

3 cm; 2 cm; 6 cm

2 cm; 4 cm; 7 cm

6 cm; 8 cm; 10 cm

3 cm; 2 cm; 5 cm

$\widehat{C} < \widehat{B} < \widehat{A}$

$\widehat{B} < \widehat{C} < \widehat{A}$

$\widehat{A} < \widehat{C} < \widehat{B}$

$\widehat{A} < \widehat{B} < \widehat{C}$